4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester

Base Information

Chemical Name:4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester
CAS No.:871834-59-2
Molecular Formula:C₂₄H₂₀F₉N₃O₂
Molecular Weight:553.427
Hs Code.:

Synonyms:4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester

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Chemical Property of 4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester

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Technology Process of 4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester

There total 8 articles about 4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 71.0%

: 871834-58-1
(3,5-bis-trifluoromethylphenyl)-(3-ethyl-7-trifluoromethyl-3,4-dihydro-2H-quinoxalin-1-yl)-acetonitrile

: 541-41-3
chloroformic acid ethyl ester

: 871834-59-2
4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester

Guidance literature:: (3,5-bis-trifluoromethylphenyl)-(3-ethyl-7-trifluoromethyl-3,4-dihydro-2H-quinoxalin-1-yl)-acetonitrile; chloroformic acid ethyl ester; With pyridine; In dichloromethane; for 2h;

With sodium hydrogencarbonate; In dichloromethane; water;

Reference yield:

: 871834-51-4
2-(2-nitro-4-trifluoromethylphenylamino)-butan-1-ol

: 871834-59-2
4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: pyridine / CH₂Cl₂

2: H₂ / Pd/C / 1-methyl-pyrrolidin-2-one

3: TBAI / 1-methyl-pyrrolidin-2-one / 80 °C

4: 74 percent / DIEA; DMP

5: pyridine / CH₂Cl₂

With pyridine; phthalic acid dimethyl ester; hydrogen; tetra-(n-butyl)ammonium iodide; N-ethyl-N,N-diisopropylamine; palladium on activated charcoal; In 1-methyl-pyrrolidin-2-one; dichloromethane;
DOI:10.1016/j.bmcl.2007.01.112

Reference yield:

: 871834-52-5
methanesulfonic acid 2-(2-nitro-4-trifluoromethylphenylamino)-butyl ester

: 871834-59-2
4-[(3,5-bis-trifluoromethylphenyl)-cyanomethyl]-2-ethyl-6-trifluoromethyl-3,4-dihydro-2H-quinoxaline-1-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: H₂ / Pd/C / 1-methyl-pyrrolidin-2-one

2: TBAI / 1-methyl-pyrrolidin-2-one / 80 °C

3: 74 percent / DIEA; DMP

4: pyridine / CH₂Cl₂

With pyridine; phthalic acid dimethyl ester; hydrogen; tetra-(n-butyl)ammonium iodide; N-ethyl-N,N-diisopropylamine; palladium on activated charcoal; In 1-methyl-pyrrolidin-2-one; dichloromethane;
DOI:10.1016/j.bmcl.2007.01.112